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Nuclear Experiment

arXiv:1512.08713 (nucl-ex)
[Submitted on 29 Dec 2015]

Title:J/ψ and Υ measurements via the di-muon channel in Au + Au collisions at $\sqrt{s_{\rm{NN}}}$ = 200 GeV with the STAR experiment

Authors:Rongrong Ma (STAR Collaboration)
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Abstract:Measurements of quarkonium production in heavy-ion collisions have played an essential role in understanding the properties of the Quark Gluon Plasma created in such collisions. In early 2014, the Muon Telescope Detector, designed to trigger on and identify muons based on its precise timing information, was fully installed in STAR. It opens the door to measure quarkonia via the di-muon channel for the first time at the STAR experiment, with the potential to separate different {\Upsilon} states. In this talk, we present the measurements of J/{\psi} suppression and elliptic flow at mid-rapidity in Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 200 GeV down to low transverse momentum ($p_{\rm{T}}$). The suppression is found to decrease with increasing $p_{\rm{T}}$ while the elliptic flow is consistent with 0 for $p_{\rm{T}}$ above 2 GeV/c. Furthermore, the measurement of different {\Upsilon} states is explored within the precision of the available statistics.
Comments: 4 page, 6 figures, proceeding for Quark Matter 2015, Kobe, Sep. 27 - Oct. 3, 2015
Subjects: Nuclear Experiment (nucl-ex)
Cite as: arXiv:1512.08713 [nucl-ex]
  (or arXiv:1512.08713v1 [nucl-ex] for this version)
  https://doi.org/10.48550/arXiv.1512.08713
Journal reference: Nuclear Physics A 956 (2016) 725-728
Related DOI: https://doi.org/10.1016/j.nuclphysa.2016.01.053

Submission history

From: Rongrong Ma [view email]
[v1] Tue, 29 Dec 2015 16:24:15 UTC (1,570 KB)
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